SEBO Power Head Cover for the AUTOMATIC X4 Boost — Complete, White

White version of the power head shell, part 50799WE covers the brush roller drive on a SEBO AUTOMATIC X4 Boost and carries the machine's finish at exactly the point where it meets baseboards and furniture legs. SEBO shows it as position 100 in the AUTOMATIC X4 Boost exploded diagram.

A shell that has cracked or lost a locating tab lets the head flex and opens a route for grit to reach the belt. The complete replacement closes that up in one fitting, with no clips or fasteners to transfer from the old part. White also shows damage sooner than the darker finishes, so this cover tends to be replaced for looks as much as for function — which is fair enough, given it is the part of an upright most often in view.

Function is worth keeping in mind all the same. The shell is what holds the head square over the roller, and a cover that flexes lets the brush run slightly out of line with the base. That shows up as uneven wear across the bristles and, in time, as a belt that runs to one side of its pulley. Fitting a sound cover keeps the geometry right as well as the appearance.

• Part number: SEBO 50799WE
• Color: white
• Fits: SEBO AUTOMATIC X4 Boost
• Diagram position: 100 in the AUTOMATIC X4 Boost exploded parts diagram
• Supplied as a complete power head cover
• Other finishes: 50799DR in red, 50799GS in graphite
• Matching white front cover: 50750SE
• Genuine SEBO part from an authorized dealer; ships in 2-5 business days

The white front cover that pairs with this shell is 50750SE. With the head open, the drive parts are all separately listed: belt 5110, brush roller 5010AM in standard bristle or 5010GE in soft, and the roller cleaning tool 8366WS. Filters and bags for the same machine come as the service box 5828AM or the HEPA service box 5827AM, with 5143 the exhaust filter on its own. Common searches are SEBO X4 Boost power head cover white, AUTOMATIC X4 Boost head shell and SEBO 50799WE.